Dam data table 　 Dam No.：613 　 Ohsio Dam ［Gunma Pref.］ Dam Photo （Photo by: Dam master） 041429 Fumufumu 048146 Dam master 048149 Dam master 062205 Dai Location (Latitude, Longitude) N 36°131' 32''，E 138°52' 39''   [Japanese Dam Finder] Purpose／Dam type FA／E Height／Crest length／Dam volume 31.9m／250.6m／488 thousand m3 Catchment area／Water surface area 130.5km2／15ha Reservoir capacity 1841 thousand m3 FY project started／completed ／1965 Notes: 1. Dam purposes are abbreviated as follows: A: Agricultural irrigation   F: Flood control   I: Water supply for industry   N: Non-specified, river flow maintenance P: Hydropower   R: Recreation   S: Snow melting &removing   W: Water supply 2. Dam types are abbreviated as follows: A: Arch   B: Buttress   CSG: Trapezoidal CSG   E: Earthfill   FA: Asphalt face fill   FC: Asphalt core fill   G: Gravity GF: Gravity concrete & fill dam (compound)   HG: Hollow gravity   MA: Multi-arch   R: Rockfill 3. The fiscal year (FY) in Japan is from April 1 to March 31 of the following year. Please send your comments Copyright 2012 JAPAN DAM FOUNDATION. All rights reserved.